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Stability of single‐wall carbon nanotube tori
Author(s) -
Yang Linfeng,
Chen Jiangwei,
Dong Jinming
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301998
Subject(s) - torus , carbon nanotube , radius , nanotube , materials science , nanotechnology , atomic physics , chemical physics , molecular physics , chemistry , physics , geometry , mathematics , computer security , computer science
We obtained the formation threshold energy expression of SWNT torus by treating single‐walled carbon nanotube (SWNT) as a continuum elastic shell, the obtained formation threshold energy is the function of the radius of formed SWNT torus. The radius of SWNT torus is found to be the most probable radius (energy preferred), which corresponds to the minimum formation threshold energy. Taking into account the rebonding energy of the dangling bond of two ends, the formation energy of the SWNT torus is negative, indicating the formed SWNT torus is stable both physically and chemically. This model can well explain the average radius of 270 nm and the narrow radius distribution of the SWNT tori in experiments. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)